"CAPTAIN HALL--'HIS worst failure was in natural and experimental philosophy, which embraces the higher mathematics, dynamics, optics, mechanics, and other studies. He missed a very simple question in optics, and the examiners, who were extremely lenient with him, chiefly, I believe, because he was colored and not white, tried him with another, which was also missed.'英文原著 · 《Henry Ossian Flipper》
Light--Optics--Solar Spectrum--Decomposition of Light--Light, Heat, and Actinism--Blue Paper and Color for the Walls of the Operating Room-- Proportions of Light, Heat and Actinism composing a Sunbeam-- Refraction--Reflection--Lenses--Copying Spherical Aberration-- Chromatic Aberration, .英文原著 · 《American Hand Book of the Daguerreotype》
Light--Optics--Solar Spectrum--Decomposition of Light--Light, Heat, and Actinism--Blue Paper and Color for the Walls of the Operating Room-- Proportions of Light, Heat, and Actinism composing a Sunbeam-- Refraction--Reflection--Lenses--Copying Spherical Aberration-- Chromatic Aberration.英文原著 · 《American Hand Book of the Daguerreotype》
It is advisable that persons engaging in the Daguerreotype art should have at least a little knowledge of the general principles of light and optics. It is not the author's design here to give a full treatise on these subjects, but he only briefly refers to the matter, giving a few facts.英文原著 · 《American Hand Book of the Daguerreotype》
Chromatic Aberration is another difficulty that opticians have to contend with in the manufacturing of lenses. It will be remembered, that in a former page (133) a beam of light is decomposed by passing through a glass prism giving seven distinct colors--red, orange, yellow, green, blue, indigo and violet.英文原著 · 《American Hand Book of the Daguerreotype》
To overcome the difficulty arising from the chromatic aberration, the optician has only to employ a combination of lenses of opposite focal length, and cut from glass possessing different refrangible powers, so that the rays of light passing through the one are strongly refracted, and in the other are bent asunder again, reproducing white light.英文原著 · 《American Hand Book of the Daguerreotype》
Half my life now is ass-covering and optics, fucking optics of everything from parties to put options.美剧 · 《Billions》